Seiko Cal. 6391 - 333

The Seiko 6391-333 represents an important milestone in Seiko's 1974 lineup. Powered by the 6391 caliber with 22j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-4896e1830149]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1974

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